Classes with only private constructors should be marked final to prevent any mistaken extension attempts.
Noncompliant code example
public class PrivateConstructorClass { // Noncompliant
private PrivateConstructorClass() {
// ...
}
public static int magic(){
return 42;
}
}
Compliant solution
public final class PrivateConstructorClass { // Compliant
private PrivateConstructorClass() {
// ...
}
public static int magic(){
return 42;
}
}
